Noiseless pivot-hinge.



E. E. KELLEY. NOISELESS PIVOT HINGE.

APPLICATION FILED JULY 18, 1911.

Patented May 21, 1912.

whoa/way PATENT oFFioE.

. EUGENE E. KELLEY, 0F GREENSBURG, PENNSYLVANIA.

NOISELESS PIVOT-HINGE.

To all whom 'it may concern:

Be it known that I, EUGENE E. KELLEY, a citizen of the United States,and a resident of Greensburg, county of Westmoreland, \State ofPennsylvania, have invented certain new and useful Improvements inNoiseless Pivot-Hinges, of which the following is a specification.

My invention relates broadly to builders hardware and more specificallyto a noiseless universal joint or hinge particularly adapted for thesuspension of oscillating bodies. i

The principal object of my invention is to provide a noiseless universaljoint adapted to act as a connecting member for ends of supportsparticularly adapted to support porch swings and swinging chairs.

Another object of my invention is to provide a universal joint withpivots at right,

angles to each other, one of said pivots being free to swing upon itsaxis, the other of said pivots being fricti'onahthus tending toresistmovement upon its particular axis.

A further object of my invention is to provide a terminal member forsupports of chains or other suspension devices, particularly adapted forthe suspension of porch swings and the like, which terminal memberincludes a wooden journal blockjforming the pivotof major oscillation.

Other and further objects of this invention will in part be obvious andwill in .part be pointed outwith more/particularity by reference to theaccompanying drawings and specific description hereinafter followmg. g

Referring more particularly' to the drawings in which like charactersrepresent like numerals throughout the various I figures thereof:Figurel is a perspective view of my invention as applied to a ceilingattaching block and supporting member. 'Fi'g. :2 is a detail in partialsection illustrating my invention as applied to the lower journal blockas attached tothe chair or swing frame. Fig. 3 is a detail of one formof the Wooden block. Fig. 4 is a detail of one form of the inclosingstrap. Fig. 5 is a perspective view illustrating my invention as appliedto a porch swing.

In swinging chairs and porch swings wherein the seat of the swing orchair is usually supported from an overhead beam or ceiling by means ofchains, it becomes Specification of Letters Patent.

Application filed July 18,

Patented May 21', 1912.

1911. I Serial No. 639,141.

{desirable that the journal blocks forming overhead support and to theseat of the chair per se, shall be so constructed as to obviateunpleasant squeakin noises. Furthermore, it is particularly desirablethat the support may have a free movement in a fore and aft directionwith reference to the front and back of the swing or support, while themovement in a sidewise direction which is at right angles to the foreand aft direction, be more or less restricted. In other words, it isdesirable that thesupporting chains be so arranged as to swing freelyback and forth and not to swing so freely in a sidewise direction.

My invention, as will be more specifically described hereinafter,cooperates as well with rigid supporting bars or rods, as with flexiblechains, or ropes.

Iteferring more particularly to the drawmember which may be a screw eye1, as

disclosed in Fig. 2. The eye portion 3- of inclosing strap 4 by means ofa pivot bolt or rivet 5, which passes through openings rivet 5 ispreferably tightened down upon the eye portion 3 of the eye bolt in suchmanner as to cause a considerable degree inclosing strap 4 and the eyeportion of the supporting bolts 1 and 2. The inclosing strap' 4 tightlyclamps a resilient journal block 7, preferably formed of wood, which isprovided with a journal opening 8, and

a partial circumferential rib '9. The inclosing strap 4 is provided onits exterior surface with a raised rib 13 which is adapted to cooperatewith the circumferential rib.9 on the being displaced endwise from thesupporting strap. The wooden journal block.7, may if desired, beflattened as at 10, in order to permit the screw eye 3 to be properlypositioned between the ends of the-inclosing strap 4. The journalopening 8 inthe wooden block 7 is preferably located near the flattenedportion 10, which flattened portion is adjacent the open ends of thestrap 4, thereby permitting a greater amount of wood be,- tween thelower portion of the supporting the end attachments of the chain, bothto thelngs, my invention comprises an attaching disclosed in Fig. 1, oran eye bolt 2, as-

6 in the inclosing strap. The pivot bolt or is preferably formed uponits exterior with journal block to prevent the journal block the screweye or bolt, is secured between the of friction between the side wallsof the strap and a pivot journal, which will here inafter be morespecifically described' An attaching loop 11 terminates in eye portions12, which form bearing heads for retaining the lower supporting members17 are fixedly attached to the seat frame of a swinging chair 18. Theoverhead supporting members 16 are connected to the seat supportingmembers 18 by chains 19. As has been hereinbefore stated, any other typeof securing means, for example, rigid bars or ropes, may be used inplace of the chains illustrated.

In operation, as the chair seat or swing frame is oscillated back andforth with a swinging movement, the pivot journal 14, which is at rightangles to the line of oscillation, permits of the free movement I of thechair back and forth, while the pivot bolt or rivets 5, whose axes arein line with the to and fro motion of the swing, tend to prevent anyendwise movement of the swing to a certain extent by reason of thefriction interposed between the screw eye 3 and the strap 4,as'hereinbefore stated.

It will be noted that the journal block 7,

.I desire to claim is A noiseless pivot hinge comprising a hearing blockof yielding material having a peripheral ridge, a continuous retainingstrap encircling said bearing block and provided with a longitudinalgroove adapted to register with the peripheral ridge of the block, aneye bolt pivoted between the ends of the retaining strap so as to permitits oscillation transverse the block, a journal member loosely mountedin the block, and an attaching loop secured to the extremities of thejournal member.

EUGENE E. KELLEY.

WVitnesses J. HILARY KEENAN, A. C. SNIVELY.

